Hi, there!
Now you'd follow these steps:
- Restart computer in Safe Mode by press F8, then Enter.
- Go to Start - All programs - Accessories - System tools - System Restore.
- On the Welcome screen, click Restore my computer to an earlier time, and then click Next.
- On the Select a Restore Point page, select the date from the calendar that shows the point you'd like to restore to, and then click Next.
- On the Confirm Restore Point Selection page, verify that the correct restore point is chosen, and then close any open programs.
- Click Next if you are ready to proceed or click Back to change the restore point.
- The computer will shut down automatically and reboot. On reboot, you'll see the Restoration Complete page, and then click OK.
Now you'll go back to Windows, scan virus again or delete the file that you think it's infected with virus.
I think you should change the anti-virus program from AVG to Avast free edition 4.8. It's very effective in real-time protection because when Avast discover your searching will be infected with virus, it'll alert you right away and delete it also. I'm using Avast and It's saved me many times when I met Trojan.
Hope this will be helpful for you!
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Be calm!!! I think you could restart by Safe Mode. Again follow this one:
As the computer is booting press and hold your "F8 Key" which should bring up the "Windows Advanced Options Menu". Use your arrow keys to move to "Safe Mode with Networking" and press your Enter key.
Now I hope you can go to Start - Run -... (follow instructions above).